134 lines
4.0 KiB
PHP
134 lines
4.0 KiB
PHP
<?php
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namespace PicoFeed\Writers;
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require_once __DIR__.'/../Writer.php';
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class Rss20 extends \PicoFeed\Writer
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{
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private $required_feed_properties = array(
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'title',
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'site_url',
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'feed_url',
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);
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private $required_item_properties = array(
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'title',
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'url',
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);
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public function execute($filename = '')
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{
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$this->checkRequiredProperties($this->required_feed_properties, $this);
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$this->dom = new \DomDocument('1.0', 'UTF-8');
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$this->dom->formatOutput = true;
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// <rss/>
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$rss = $this->dom->createElement('rss');
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$rss->setAttribute('version', '2.0');
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$rss->setAttributeNodeNS(new \DomAttr('xmlns:content', 'http://purl.org/rss/1.0/modules/content/'));
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$rss->setAttributeNodeNS(new \DomAttr('xmlns:atom', 'http://www.w3.org/2005/Atom'));
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$channel = $this->dom->createElement('channel');
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// <generator/>
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$generator = $this->dom->createElement('generator', 'PicoFeed (https://github.com/fguillot/picoFeed)');
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$channel->appendChild($generator);
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// <title/>
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$channel->appendChild($this->dom->createElement('title', $this->title));
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// <description/>
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$channel->appendChild($this->dom->createElement('description', isset($this->description) ? $this->description : $this->title));
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// <pubDate/>
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$this->addPubDate($channel, isset($this->updated) ? $this->updated : '');
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// <atom:link/>
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$link = $this->dom->createElement('atom:link');
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$link->setAttribute('href', $this->feed_url);
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$link->setAttribute('rel', 'self');
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$link->setAttribute('type', 'application/rss+xml');
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$channel->appendChild($link);
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// <link/>
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$channel->appendChild($this->dom->createElement('link', $this->site_url));
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// <webMaster/>
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if (isset($this->author)) $this->addAuthor($channel, 'webMaster', $this->author);
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// <item/>
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foreach ($this->items as $item) {
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$this->checkRequiredProperties($this->required_item_properties, $item);
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$entry = $this->dom->createElement('item');
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// <title/>
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$entry->appendChild($this->dom->createElement('title', $item['title']));
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// <link/>
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$entry->appendChild($this->dom->createElement('link', $item['url']));
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// <guid/>
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$guid = $this->dom->createElement('guid', $item['url']);
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$guid->setAttribute('isPermaLink', 'true');
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$entry->appendChild($guid);
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// <pubDate/>
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$this->addPubDate($entry, isset($item['updated']) ? $item['updated'] : '');
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// <description/>
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if (isset($item['summary'])) {
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$entry->appendChild($this->dom->createElement('description', $item['summary']));
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}
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// <content/>
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if (isset($item['content'])) {
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$content = $this->dom->createElement('content:encoded');
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$content->appendChild($this->dom->createCDATASection($item['content']));
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$entry->appendChild($content);
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}
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// <author/>
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if (isset($item['author'])) $this->addAuthor($entry, 'author', $item['author']);
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$channel->appendChild($entry);
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}
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$rss->appendChild($channel);
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$this->dom->appendChild($rss);
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if ($filename) {
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$this->dom->save($filename);
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}
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else {
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return $this->dom->saveXML();
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}
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}
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public function addPubDate($xml, $value = '')
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{
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$xml->appendChild($this->dom->createElement(
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'pubDate',
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date(DATE_RFC822, $value ?: time())
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));
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}
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public function addAuthor($xml, $tag, array $values)
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{
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$value = '';
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if (isset($values['email'])) $value .= $values['email'];
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if ($value && isset($values['name'])) $value .= ' ('.$values['name'].')';
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if ($value) {
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$author = $this->dom->createElement($tag, $value);
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$xml->appendChild($author);
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}
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}
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} |